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CONTINUITY OF THE SPECTRUM ON (classA)*

  • Lee, Jae Won (Department of Applied Mathematics Kumoh National Institute of Technology) ;
  • Jeon, In Ho (Department of Mathematics Education Seoul National University of Education)
  • Received : 2012.12.20
  • Accepted : 2013.01.25
  • Published : 2013.03.30

Abstract

Let $(class{\mathcal{A}})^*$ denotes the class of operators satisfying ${\mid}T^2{\mid}{\geq}{\mid}T^*{\mid}^2$. In this paper, we show that the spectrum is continuous on $(class{\mathcal{A}})^*$.

Keywords

References

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Cited by

  1. ON THE SPECTRAL CONTINUITY vol.23, pp.1, 2013, https://doi.org/10.11568/kjm.2015.23.1.65